We are joined by Jono from Rosetta Roastery, with whom we have a long, fairly thought-provoking chat. Jono posts a challenge to all in the coffee industry, what will be your response? Comment below or use: Facebook or Twitter. Jono is not just a pretty face, he does know a thing or too about coffee. Especially how to make it go from green to brown in a way that makes it yummy. Category: calibration Addendum: What is VST, and why is it important read Matt Perger’s post: baristahustle.com/vstwtf-part-1